pub struct BasicYarnAutoscalingConfig {
    pub graceful_decommission_timeout: Option<Duration>,
    pub scale_up_factor: f64,
    pub scale_down_factor: f64,
    pub scale_up_min_worker_fraction: f64,
    pub scale_down_min_worker_fraction: f64,
}
Expand description

Basic autoscaling configurations for YARN.

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§graceful_decommission_timeout: Option<Duration>

Required. Timeout for YARN graceful decommissioning of Node Managers. Specifies the duration to wait for jobs to complete before forcefully removing workers (and potentially interrupting jobs). Only applicable to downscaling operations.

Bounds: [0s, 1d].

§scale_up_factor: f64

Required. Fraction of average YARN pending memory in the last cooldown period for which to add workers. A scale-up factor of 1.0 will result in scaling up so that there is no pending memory remaining after the update (more aggressive scaling). A scale-up factor closer to 0 will result in a smaller magnitude of scaling up (less aggressive scaling). See How autoscaling works for more information.

Bounds: [0.0, 1.0].

§scale_down_factor: f64

Required. Fraction of average YARN pending memory in the last cooldown period for which to remove workers. A scale-down factor of 1 will result in scaling down so that there is no available memory remaining after the update (more aggressive scaling). A scale-down factor of 0 disables removing workers, which can be beneficial for autoscaling a single job. See How autoscaling works for more information.

Bounds: [0.0, 1.0].

§scale_up_min_worker_fraction: f64

Optional. Minimum scale-up threshold as a fraction of total cluster size before scaling occurs. For example, in a 20-worker cluster, a threshold of 0.1 means the autoscaler must recommend at least a 2-worker scale-up for the cluster to scale. A threshold of 0 means the autoscaler will scale up on any recommended change.

Bounds: [0.0, 1.0]. Default: 0.0.

§scale_down_min_worker_fraction: f64

Optional. Minimum scale-down threshold as a fraction of total cluster size before scaling occurs. For example, in a 20-worker cluster, a threshold of 0.1 means the autoscaler must recommend at least a 2 worker scale-down for the cluster to scale. A threshold of 0 means the autoscaler will scale down on any recommended change.

Bounds: [0.0, 1.0]. Default: 0.0.

Trait Implementations§

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impl Clone for BasicYarnAutoscalingConfig

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fn clone(&self) -> BasicYarnAutoscalingConfig

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BasicYarnAutoscalingConfig

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for BasicYarnAutoscalingConfig

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Message for BasicYarnAutoscalingConfig

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fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.
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fn clear(&mut self)

Clears the message, resetting all fields to their default.
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fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>
where Self: Sized,

Encodes the message to a buffer. Read more
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fn encode_to_vec(&self) -> Vec<u8>
where Self: Sized,

Encodes the message to a newly allocated buffer.
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fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>
where Self: Sized,

Encodes the message with a length-delimiter to a buffer. Read more
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fn encode_length_delimited_to_vec(&self) -> Vec<u8>
where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.
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fn decode(buf: impl Buf) -> Result<Self, DecodeError>
where Self: Default,

Decodes an instance of the message from a buffer. Read more
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fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>
where Self: Default,

Decodes a length-delimited instance of the message from the buffer.
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fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>
where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self. Read more
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fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>
where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.
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impl PartialEq for BasicYarnAutoscalingConfig

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fn eq(&self, other: &BasicYarnAutoscalingConfig) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for BasicYarnAutoscalingConfig

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impl StructuralPartialEq for BasicYarnAutoscalingConfig

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where T: ?Sized,

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That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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